staging:ozwpan: Fixed trailing whitespace in ozpd.h

This patch fixes trailing whitespace error found in ozpd.h

Signed-off-by: Jelena Bjelja <jelena.bjelja.ing@gmail.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>